Lorraine this is one i have to question as well, some vets swear by giving your cats raw meat, and i actually do give my cats ground prime beef mince weekly , although only ash will consume it, but thats all and i keep it to a minimum.
Some people give their cats raw chicken necks, and say they love it, i have not tryed this and not sure i will, i think its up to you really, but im sure there will be opinions that differ to mine, but just take it all in and decide whats best for your kitties, good luck.